Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-39836

In the Linux kernel, the following vulnerability has been resolved: efi: stmm: Fix incorrect buffer allocation method The communication buffer allocated by setup_mm_hdr() is later on passed to tee_shm_register_kernel_buf(). The latter expects those buffers to be contiguous pages, but setup_mm_hdr() just uses kmalloc(). That can cause various corruptions or BUGs, specifically since commit 9aec2fb0fd5e ("slab: allocate frozen pages"), though it was broken before as well. Fix this by using alloc_pages_exact() instead of kmalloc().
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.8%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2025-39836


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